Sounds obvious but I am interested in learning about turtles. I live on the west coast of Vancouver Island and I am thinking about getting a couple of red eared sliders. They are considered an invasive species here, but I know they can survive. I have a 1300 liter stock tank in my back yard that I am in the process of setting up. Thanks in advance,

Welcome to the forum! Are they legal in your area? I know Canada has some inconsistent laws regarding reptile keeping. 1300 liters might be OK for 2 females that get along or either only a male or a female.

Hi and Welcome Yoda to the Turtle Talk Forums, Being from Canada, I assume that Canada goes by Great Britain's overall measurements in liquids being that the Queen of England is head of State. With that stated, I added below my post the conversion link in which you can see that 1300 liters equals to 286 rounded off. Feel free to check it yourself below.

Now the general rule of thumb according to most people is 10 gallons of habitat for every inch of shell length. So say you have two red ear slider females that can get 12 inches long however they tend to grow 10 to 11 inches but lets go with say 12 inches maximum. 1 red ear female slider would equal to 120 gallons so two adult females would be 240 gallons using this rule of thumb.

Being that your area would be a hair under 286, you are fine and correct keeping in mind as Steve pointed out that the turtles get along. Steve has also mentioned that Canada has some inconsistent laws regarding reptile keeping. I found this out to with the permits needed to ship reptiles in and out of the Countries. Steve and others on these boards have recommended to check your local and government laws to stay legal and I also agree with them.